Improvement in heating-stoves



2 She'ets--Sheet 1. W. DYLE. Heating-Stoves. 510,151,479, Patented june2,1874.

fnrrnn STATES NVILLIAM DOYLE, OF ALBXY, NEl/V YORK.

IMPROVEMENT IN HEATING-STOVES.

Specification formingpari of Letters Patent No. 151,479, dated June 2,1874; application file-d November 12, 1&73.

To all 'whom 'it may concern Be it known that I, WILLIAM DoYLn, of the city and county of Albany, Stateot' New York, have invented certain new and useful Improvements in Heating-Stoves and Furnaces; and I do hereby declare the following to be a description thereof', reference being had to the drawings forming a part of this specification, in which- Figure l represents a perspective view of the lower section Aof a stove or furnace with parts broken away, illustrating the improvements in this invention. Fig. 2 is a sectional elevation from front to rear. Fig. 3 is a view from above, taken at a horizontal line in Fig. 2. Fig. 4 is a view of the base-plates of thc descending nues, the bottom plate heilig removed. Fig. 5 is a sectional view from the rear, illustrating the position ot' the baseplates of the descending ilues. Fig. 6 is a plan of the base ot' a stove, illustrating a moditieation of the number, form, and arrangement of the base-plates of the descending lines. Fig. 7 is a sectional elevation, illustrating the return-iiue used with the same. Fig. S represents two other modifications of the baseplates in number, form, and arrangement. Fig. 9 is a sectionalelevation from front to rear, illustrating the return-iiue that may be used with the modifications used in Figs. (i and 8. Fig. l() is a perspective view ot' a baseplate on an enlarged scale, and the flue-strips connected with the saine.

My invention relates to the tlues leading from the margin of the re-pot into the base of the stove, and the return-iiues leading from the base to the exit.

To enable others skilled in the art to make and use my invention, I will proceed to describe it with reference to the drawings and the letters of reference marked thereon, the same letters indicating like or similar parts.

In the drawings, A represents the base of the stove. B is the outer wall of the iire-pot section. C is the fire-pot. D is the inner casing of the tirepot, from which inner easing the fire-pot may be suspended or supported. The inner easing l) is placed eccentrically with the outer casing B, so that the portion oi the walls of the said casings in front will about contact, as shown in Figs. l, 2, and 3, while the rear portions ot' the said walls orcasings will be at a distance apart suiiieicnt to form the full depth of the rear vertical return-flue E, as shown in Figs. l, 2, 3, 4. By this form ot'l construction the rear return-flue is conta-ined wholly within the easing B, and all necessity ilues E and Fl F2 as shown. The number otiluestrips used to form such ilues may be varied according to the size of the stove. In some eases I would use two such flue-strips on a side, as shown in Fig. 4, while in others three may be used, as in Fie. 8,011 a greater number, as in Fie. 6.

It is well known that, in stoves having a revertiblc draft to and from the base, the draft is frequently so ait'ected by the atmosphere as to move in a very sluggish manner. In my invention I' wholly overcome such defective operation in the stove by causing each individual iiue tol operate with its contiguous i'lues in such a manner as to stimulate their action, and the same means used to prevent a sluggish'dratt also prevents all back passage et' the gases from the return-il ue. The flue-strips a are continued down from the top ot' the iirepot section to the lower portion of the inner casing D, and connect with the base-plates c c, Figs. l, 2, 3, 5, 6, 8, and 10, which base-plates reach down to the bottom plate c ot' the stove, and are extended out toward the wall of the base, so as to connect or intersect with the saine, while their inner ends terminate free fromany contact with any walls or equivalents to obstruct the passage ot' the het gases from the space between such baseplates, as shown in Figs. et, 6, and S. The said base-plates may be made of any form to adapt them to the style orconformation of the base they are to be used in, and may be modied size, form, and position according to the number` to be used. In practice I prefer to make the said plates with a form of surface somewhat undulating or twisted, or similar to the surfaces of a mold-board of a plow, or the feathers of a propeller-wheel, as shown in Figs. 4, 6, and by full shaded lines in Fig. 8, though they may be made with a plain surface, as shown in outline in Fig. S; yet in all eases, whatever maybe their form of surface, I so arrange them, relatively with the bottom plate c of the stove and each other and their liuc-strips a, that their lower parts or edges will be set considera-bly out of line with their top portions connecting with the flue-strips, as shown in Figs. l, 4, 5, 6, 8, and 10. I also so arrange the said plates that their lower portions will set oblique, as shown in the said figures.

By this form of construction and arrangement of the said base-fines wit-hin the base portion of the stove, the heated gases, entering into the base fronithe llues F1 F2, will pass into the spaces between the said plates, and,

contacting'with the said plates, will highly' heat the saine-that is to say, the heated gases passing down the flue F1 in Fig. 4 will strike the upper surface of the plate c1 at the rear of the flue, and will pass underneath the plate c2 at the front ofthe said flue; and both plates, thus having their respective surfaces acted 011 by the passing hot gases, will become heated, and will radiate their heat outward and toward the spaces of the contiguous fines, and thereby stimulate their action. When several such flues are employed, each having a base plate or plates at their lower terminations, the heated gases, passing down, will act on the base-plates, separating such flues, and cause them to be heated, and operate with the adjoining ilues to stimulate their action.

In arranging the lower portions of the said base-plates so as to incline outward from thc flue-strips, the heated gases are directed outward tow. rd the outer wall of the base ofthe stove and beneath the plate immediately forward 5 and by setting the plates oblique, the heated gases will be made to enter the larger place or space at the walls of the base, and from thence escape through a more contracted space inward in the base, as sh-own in Figs. 4, 6, and 8 by arrows.

When I use two base-plates, with line-strips, on a side, as shown in Figs. 4 and S, I prefer to make them rights and lefts, as shown; but when many such plates are used, as shown in Fig. 6, I would prefer to have them run in one direction Vith right and left plates I terminate their inner ends past the rear end of the plate in front, connecting with the iiuestrips, as shown in Figs. 4 and 8, so as to cause the heated gases to pass toward they front portion of the base, as indicated by arrows. I also use with the front base-plate the curved plates, which will direct the heated gases backward toward and into the horizontal base return-liuc G as they escape from the fines back ofthe front flue F2 in Fig. 4, the said curved plates acting as a wall for the separation of the heated gases passing from the ilues F1 and FZ in Fi 4, and also acting so as to cause the heated gases to contact with the front portion of the base as they pass from the front iiues around the said curved plates s.

It will be readily seen that by the improve ments :in this invention the arrangelnent and construction of fines above described will cause a stronger draft to the stove, as the hot gases will be drawn from the nurgin of the fire-pot into separate ilues, having their base portions of larger capacity, with more contracted openings into the returndlue, which will canse a better and sharper draft; and that, by the peculiar arrangements of the base-plates, the hot gases will be made to heat the tlues adjoinii'ig those it is made to pass 1 through, and thereby stimulate such flues to.

greater activity.

It is also seen that these features may be modified to adapt them to the several styles of stoves now in'use for heating purposes;

and that their form may be varied to suit the forms ofthe stoves, or bases of the same they are to be applied to.

When made with base-plates, as shown in Fig. 6, the return-flue Gr may be made as shown in Figs. 7, S, and 9, in which -its rear portion may be elevated, as shown in Fig. E), so that the hot gases passing down the rear vertical lines F1, adjacent to the rear vertical return-fine E, may pass beneath, as shown by arrows in said igurc. This form of construe tion for the said llue G is preferred, though it may be modified when a series of base-plates set in the same direction is used, as in Fig. G.

Stoves constructed with these improvements will have their bases more highly heated than lin the old method of construction, as the heated gases will be made to circulate the whole periphery of the base,'so as to impinge on all parts of the iron coin posin g the walls of the same.

Having described my invention, what I claim, and desire to secure by Letters Patent, is-

1. In a stove having draft-fines descending into the base, the base=plates c c, made continuous with the flue-strips a a., and sloped downwardly and outwardly toward theV periphery of the base, substantially as set forth.

2. In combination, a series of base-plates, c, connecting with the {lue-strips c at their lower ends, and a horizontal return-flue, Gr, located centrally within the base, substai'itially as set forth.

NVILLIAM 'DOYLE NVitnesses:

lflDwARD H.v DoYLE, J AMES VRIGHT. 

